TL;DR (2026) — Pura wins for most people. It’s cheaper to buy ($49.99 vs. $235), cheaper to run, and uses scents you already know like Capri Blue and Nest. Aera covers a bigger space and pushes scent harder, but it’s pricier and the fragrances are very perfume-forward. We own both: Pura lives in our kitchen, Aera lives in our garage.
Pura vs Aera: the short answer
Get Pura if you want to spend less and you already love certain candle brands. The device is $49.99, the refills are about $15, and you can run scents like Capri Blue Volcano or Nest Bamboo. That’s most people.
Get Aera if you have a big, open space and you want a strong, perfume-style scent that really fills the room. The full-size diffuser is $235, the capsules run about $60, and it covers more square footage than Pura. It’s the pricier, more powerful option.
We bought both and tested them in our own home. Below is the long version — price math, scents, coverage, setup, and where each one actually ended up living in our house.
What's better than candles? Something that smells EXACTLY like a candle and is less expensive. We've found the world's best smart diffuser, Pura. Get Pura and enjoy scents you already know and love, like Capri Blue and many, many more.
- Many scents that you already know and love
- Inexpensive device
- Holds two scents - not just one
- Programmable with your Smart Phone
- Nightlight
- Limited coverage (but can always buy 2)
- Diffuser is frequently out of stock
What's better than candles? Something that smells EXACTLY like a candle and is less expensive. We've found the world's best smart diffuser, Pura. Get Pura and enjoy scents you already know and love, like Capri Blue and many, many more.
- Many scents that you already know and love
- Inexpensive device
- Holds two scents - not just one
- Programmable with your Smart Phone
- Nightlight
- Limited coverage (but can always buy 2)
- Diffuser is frequently out of stock
While Pura benefits from many name-brand fragrances, Aera is just starting to expand it's line of well-known fragrances from brands like The Laundress.
- Superior fragrance dispersement
- Scents designed to eliminate specific odors (like pets, smoking, etc)
- New scents coming out
- Hard to tell what scents you will like and not like
- Some scents are too floral
Aera vs. Pura: What you need to know
The main difference between Pura and Aera comes down to price, coverage and scents. Pura is cheaper, Aera has more coverage, and Pura has better scents (for our taste). It’s that simple.
In the great Pura vs. Aera debate, let me tell you a dirty little secret first. People, like us at We Tried It, get paid whenever you make a purchase from clicking a link on our website. It’s true.
However, we’re proud to only recommend products that we would spend our hard-earned dollar on.
So, if you look up Pura and only see great reviews, or if you look up the Aera Smart diffuser and only see great reviews: be skeptical. Each one of those reviews is trying to convince you to click the link to buy the product. Buyer beware.
Pura Smart Diffuser vs. Aera Smart Diffuser – Quick Overview
| Pura | Aera | |
|---|---|---|
| Diffuser Price | $49.99 | $235 (Mini: $95) |
| Fragrance Price | About $15 | About $60 |
| Fragrance Lasts | About 300 Hours | About 800 Hours |
| Coverage | “Up to 1,000 square feet” | “500 – 1,000 square feet” |
| Scents Available | Pura Brand + Name Brands like Capri Blue and Nest | Only Aera Brand Scents |
Pura vs. Aera: How did we decide?
There are a lot of reasons to look at both smart diffusers. Here is what we were after:
- A way to reduce what we spend on candles every year.
- A safer alternative to candles (aka no flame).
- Something that does a better job spreading scent across our (mostly) open floor plan.
If you had to boil it down, those are probably the most common reasons people look for a smart diffuser like Pura or Aera. We’ll come back to these three criteria shortly.
Pura now sells the Pura 4 (also called the Home v5) as its standard device. Read our Pura Review for the full rundown.
Aera vs. Pura – what we didn’t think about before buying
Here’s something that seemed small but turned out to be a GIANT deal in the battle of Pura vs Aera: the scents.
Obviously the scent is the biggest reason you buy a diffuser or a candle. But we under-estimated how hard it is to create a great scent. With Pura, you know EXACTLY what you’re getting.
You know what Capri Blue candles smell like, or what Nest candles smell like. So you know EXACTLY what Pura’s scents smell like.
With Aera it’s different. You can read the descriptions on the website, but what exactly does “pink pepper,” “cypress” or “bergamot” smell like? That’s a much harder question.
Luckily, Aera sells sample sets so you can try a scent before you commit to a full capsule. As you’ll see, we REALLY recommend buying the samples (currently around $20 a set) if you’re considering Aera.
Pura vs Aera: Which is cheaper in the long run?
This was a big part of our decision. Pura is cheaper to start, obviously. The device itself is $49.99 – and you can use our Pura Promo Code to save even more.
Aera is more expensive to start. The full-size diffuser is now $235, and there’s a smaller Aera Mini at $95 if you want to spend less (also, be sure to use our Aera Promo Code to save even more).
Here’s the math. Aera says a fragrance lasts up to 800 hours. So one full-size diffuser plus one capsule is about $295 ($235 for the device and about $60 for the fragrance) for the first 800 hours.
Pura says each fragrance lasts about 350 hours. The Pura holds two fragrances, so you’re looking at roughly $80 to start ($49.99 for the device and about $15 for each of two refills).
We found that Pura didn’t quite hit 350 hours at a medium intensity, especially in the dry Colorado climate. So let’s round down to 300 hours.
Aera = about $295 for the first 800 hours = roughly $0.37/hour
Pura = about $80 for the first 600 hours (2 x 300 hours, one per fragrance) = roughly $0.13/hour
But here’s where it gets interesting. Once that first set of fragrances runs out, you’re only buying refills:
Pura: about $30 for the next 600 hours = about $0.05/hour
Aera: about $60 for the next 800 hours = about $0.075/hour
To put that in perspective, a Capri Blue 19 oz Signature candle runs about $35 and lasts roughly 85 hours = about $0.41/hour. That’s 5–8x more expensive per hour than either diffuser.
Disclaimer: we weren’t able to run Aera for the full 800 hours, as we’ll explain below.
Winner for best price in the long run? Pura
Device connectivity and app features
Both diffusers connect over WiFi and run from a phone app. You can set schedules, adjust intensity, and check how much fragrance is left on either one.
Pura’s app adds a customizable LED light and lets you alternate between two scents. Aera’s app keeps it simple with one capsule at a time and works with Alexa for voice control (we didn’t test voice – schedules covered us fine).
Both apps get regular updates, and both have gotten better since we’ve owned the devices.
Aera or Pura: The Scents
As we mentioned above, we severely underestimated how much NOT knowing what a fragrance smelled like would matter. It’s a GIANT deal.
In short: if you like scents that smell like candles you already know and love, go with Pura.
If you like VERY perfumey, floral scents, go with Aera. We’ve tried 15+ scents from Aera, and the only one that isn’t perfumey and floral is the vanilla scent.
Every time Aera released a new scent, we kept thinking this one might change our minds. It never happened.
You buy the diffuser for the scents, so that matters a lot. We never got to 800 hours with any Aera scent because they were too floral and smelled too much like perfume for us.
The same was true of the Aroma360 scents. Read our full Aroma360 Review for more.
Winner for best fragrances? Pura
Pura vs Aera: Overall Coverage
Partly because the Aera scents are stronger (in that perfume/floral way), we tended to smell it more across our mostly-open first floor. Our second floor opens onto the first, and we’d occasionally even catch the Aera scent upstairs.
Aera says it covers about 500–1,000 square feet, which is fairly accurate.
Pura says it covers about 1,000 square feet, which is probably slightly generous.
One way Aera pushes scent out is with what’s basically a small fan you can hear. They call it “Microdroplet Technology” – “Aera’s Microdroplet technology converts liquids to ultra-tiny droplets which are fifty times smaller than traditional aerosol droplets. They transition instantly to invisible aroma molecules which can fill a room in seconds with consistent scent.”
The downside is that you can hear it. We actually thought the device was broken until we reached out to customer support.
Winner for best coverage? Aera
Aera vs Pura: Overall set up and operation
To be honest, both devices do a really good job here. They’re both easy to connect to WiFi and have pretty good apps. Both could use a little finesse, but that’s easy to fix and we’ve seen updates to both apps since we’ve owned them.
Both the Pura and Aera can run on custom schedules from the app. Both can be controlled via Alexa, but we didn’t test it (the schedules work well for us).
The Pura has a slight edge here because it also includes a customizable LED light. It can be tuned to any color and set to turn on at certain times or when it’s dark. We have ours set to a cool blue when it’s dark, to use as a nightlight.
The Pura also alternates between two scents (which we recommend – you smell them better when they change). The Aera runs one fragrance at a time.
Winner for easiest set up? Pura
Customer support and warranty
Both Pura and Aera back their devices with a warranty and have support teams you can reach if something goes wrong.
The one time we contacted Aera support – when we thought the microdroplet hum meant our device was broken – they cleared it up quickly. So we have no complaints there.
Pura vs Aera: The final verdict (and how we use BOTH in our home)
Pura is the clear winner. The combination of better scents and a much lower price makes it a no-brainer for most people.
The only time we’d pick Aera over Pura is if you want a large area filled with a stronger, more perfume-like smell. Ironically, that’s exactly how we use Aera at home.
The Pura lives in our kitchen, usually loaded with Capri Blue’s Volcano and Havana Vanilla. The Aera ended up in our garage. A while back we had a party on a Saturday. Garbage gets picked up on Friday. So we had a super stinky garage.
We weren’t even using the Aera at the time because we didn’t love the scents. So I grabbed it and put it in the garage. Aera now has Home Hygiene scents that are great at killing odors. We ran one and a couple hours later – no bad smell, just Orange Peel and Eucalyptus. It’s an expensive garage diffuser, but the Aera is staying in the garage.
Our kitchen is the heart of the home, though, and that’s where our Pura (and the Capri Blue Volcano scents) will live.
Our recommendation: Pura Smart Diffuser
Be sure to use our Pura Promo Code to save even more on the Pura diffuser.
If you’re curious about either device, check out our full Pura Diffuser Review or the Aera Smart Diffuser Review. What do you think of our Pura vs Aera comparison? Is it fair? Would you pick a different winner?
Also, be sure to check out our newest Pura and Aera product reviews:
Pura vs Aera FAQ
Is Pura or Aera cheaper?
Pura is cheaper, both upfront and over time. The Pura device is $49.99 with refills around $15. The full-size Aera diffuser is $235 with capsules around $60. Per hour, Pura runs roughly $0.05 on refills versus about $0.075 for Aera.
Which has better scents, Pura or Aera?
For our taste, Pura. Pura uses recognizable candle brands like Capri Blue and Nest, so you know exactly what you’re getting. Aera’s scents are mostly perfume-forward and floral – great if that’s your style, but harder to predict. Order Aera samples first.
Which covers a bigger room?
Aera. It claims 500–1,000 square feet and pushes scent harder using its microdroplet fan. Pura claims up to 1,000 square feet, which we found slightly generous. For large, open spaces, Aera wins on coverage.
How long do the fragrances last?
Aera says about 800 hours per capsule. Pura says about 350 hours per refill, though we got closer to 300 in the dry Colorado climate. The Pura holds two refills at once and can alternate between them.
Which should I buy?
For most people, Pura – it’s cheaper and uses scents you already love. Choose Aera if you have a large space and want a strong, perfume-style scent (or need to knock out odors, like we do in our garage).
Aera just did a deal with The Laundress to produce their detergent scents for the diffuser- no.723 is the best smell I be ever smelled… It’s more perfume like, but oh so good- I just breath in the delicious scent off my sheets when they are freshly laundered in The Laundress no.723 detergent and fabric conditioner, and it is heavenly! Being able to have this in a diffuser is a dream come true! If they made it on perfume, I’d buy that in a second!!! Yes, it’s that good!!! I recommend you give their new Laundress fragrances a try!
You read our minds! We actually just ordered some of the Laundress scents to test out!
I have tried both and feel like Aera is the best! The Laundress 723 scent is the best for my home! I use the Laundress products which I love and that is the reason I bought the Aera diffuser. I don’t run it 24/7, but have used 4 months and still have lovely clean scent from one cartridge when I turn it on. Glad to see you are updating your tests! Thanks!!!